Comment #10 on issue 1972 by [email protected]: Incorrect treatment of
unicode escapes in keywords
https://code.google.com/p/v8/issues/detail?id=1972
ATM the spec draft also says:
The ReservedWord definitions are specified as literal sequences of specific
SourceCharacter elements. A code point in a ReservedWord cannot be
expressed by a \ UnicodeEscapeSequence.
http://people.mozilla.org/~jorendorff/es6-draft.html#sec-reserved-words
So... based on this, I don't think
v\u0061r x = 0
eval("v\\u0061r y = 1")
should be illegal.
However, what yangguo@ said above still holds, so these should be illegal:
var v\u0061r = 9
eval("var v\\u0061r = 9")
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